Distinguishing the number of captured microspheres in dual-beam optical trap by measuring the back light signal | |
Zhou, Deyuan1; Chen, Xinlin1; Xiao, Guangzong1,2; Han, Xiang1; Jin, Shilong1; Xiao, Guangzong (xiaoguangzong@nudt.edu.cn) | |
2017 | |
会议日期 | 2017-06-04 |
会议地点 | Beijing, China |
卷号 | 10460 |
DOI | 10.1117/12.2284995 |
英文摘要 | Optical traps have been widely used in a large variety of applications ranging from biophysics to nano-sciences. More than one microscopic object can be captured in an optical trap. In the practical application, it is always necessary to distinguish and control the number of captured objects in the optical trap. In this paper, a novel method has been presented to distinguish the number of trapped microspheres by measuring the intensity of back signal. Clear descent of the back signal has been observed when a microsphere is captured in the center of optical trap. The relative coupling efficiency of back signal decreases as the number of captured microspheres increases both in experiment and theory. This method contributes to miniaturization and integration of applied systems due to getting rid of the imaging system, and is generally applicable to the area of nanoparticle trapping. © 2017 SPIE. |
产权排序 | 2 |
会议录 | AOPC 2017: Optoelectronics and Micro/Nano-Optics |
会议录出版者 | SPIE |
语种 | 英语 |
ISSN号 | 0277786X |
ISBN号 | 9781510614017 |
内容类型 | 会议论文 |
源URL | [http://ir.opt.ac.cn/handle/181661/29873] |
专题 | 西安光学精密机械研究所_瞬态光学技术国家重点实验室 |
通讯作者 | Xiao, Guangzong (xiaoguangzong@nudt.edu.cn) |
作者单位 | 1.College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha, 410073, China 2.State Key Laboratory of Transient Optics and Photonic, Chinese Academy of Sciences, Xian, 710068, China |
推荐引用方式 GB/T 7714 | Zhou, Deyuan,Chen, Xinlin,Xiao, Guangzong,et al. Distinguishing the number of captured microspheres in dual-beam optical trap by measuring the back light signal[C]. 见:. Beijing, China. 2017-06-04. |
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